Permutation-lock



(No Model.)

J. J. BYRNE. PERMUTATION LOG-K.

Patented June 29, 1897.

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UNTTED STATES PATENT Unrron.

JAMES J. BYRNE, OF DETROIT, MICHIGAN.

PERMUTATlON-LOCK.

SPECIFICATION forming part of Letters Patent N 0. 585,505, dated June29, 1897.

Application filed March 18, 1897.

To all whom it may concern.-

Be it known that I, JAMES J. BYRNE, of Detroit, in the county of WVayneand State of Michigan, have invented a new and ImprovedPermutation-Lock, of which the following is a full, clear, and exactdescription.

The purpose of this invention is to provide a permutation-lockapplicable to the steering-heads of bicycles and capable of engaging andholding the steering-fork so that it will be impossible to steer themachine and consequently to use it.

This specification is a disclosure of one form of my invention, whilethe claims define the actual scope of my invention.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference inclicatecorresponding parts in all the figures.

Figure 1 is a side elevation of the invention in use. Fig. 2 is asectional view taken through the lock and showing it in open or releasedposition. Fig. 3 is a sectional view showing the lock in closedposition. Fig. 4 is a front elevation of the lock, and Fig. 5 is a frontelevation of the lock with the exterior casing removed.

The steering-head 6 has the lock rigidly attached thereto, and the stem7 of the steering-form turning within the head 6 has an opening 8,adapted to be engaged with the bolt of the lock, whereby to hold thestem 7 immovably with the head 6 and thus prevent the steering-fork frombeing operated.

The lock has a base-plate 9, curved to conform to the front face of thesteering-head 6 and rigidly secured thereto. The middle portion of thebase-plate 9 has an opening therein and has a tube 10 running outwardfrom such opening. The tube 10 has an inner bore equal to the size ofthe opening in the middle portion of the plate 9, and has an outer borereduced in reference to the size of the inner bore and provided with aslot 11 in its lower side. The slot 11 runs through the vertical wall ofthe tube 10, which wall divides the outer and the inner bores, so thatthe ward 12 on the bolt 13 may pass from the inner to the outer part ofthe tube. The Ward 12 and the bolt 13 are so shaped that the ward 12 mayswing freely within the in- .notches 23.

Serial No. 628,147. (No model.)

ner bore of the tube 10, and when drawn into the slot 11 the ward mayslide longitudinally; but the bolt is held from revolution,owing to thefact that the ward is longer than theradius of the outer portion of thetube.

The outer or reduced portion of the tube 10 has its outer side formedwith two circumferences, the outer of which carries a ringtumbler 14 andthe inner of which carries a ring-tumbler 15. The tumbler lat has anotch 16 in its periphery which extends throughout one-half of theperiphery. The tumbler 15 has a notch 17 in its periphery, which notchextends throughout one-third of the circumference of the tumbler. Thebolt 13 is aXially located with reference to the tube 10, and is capableof passing through an opening 18 in the steering-head 6, so as to enterthe opening 8 in the stem 7 of the steeringfork. This will lock theparts 6 and 7 with each other. The outer end of the bolt 13 carries asuitable head 19, by which the bolt may be manipulated.

Inclosing the tube 10 and the tumblers 14 15 is a rotative exteriorcasing 20. The casing 20 is circular and has an outer head 21, with anaxially-coincident orifice receiving the bolt 13. The inner end of thecasing 20 is open and has an outwardly-projecting flange 22, providedwith a series of peripheral The enlarged inner portion of the tube 10has in its outer face an annular groove 24, receiving a pin 25,projecting from the inner face of the casing 20, whereby the casing isheld to rotate on the tube 10, but is prevented from being accidentallydisplaced therefrom. The casing 20 carries two additionalinwardly-projecting pins 26 and 27, respectively working in the notches16 and 17 and serving to adjust the tumblers 14 15 on the tube 10 whenthe casing 20 is turned in the operation of the lock. Each tumbler 14and 15 is provided on its inner circumference with a notch 28, which isadapted to register with the slot 11 in the tube 10. hen the notches 28register with the slot 11, a clear passage will be provided for the ward12, permitting the bolt 13 to be drawn longitudinally to engage ordisengage the opening 8. The turning of the casing 20 after the mannerof a specific combination will place the tumblers 14 and 15 in suchposition that the notches 28 will register with the slot 11, whereuponthe bolt may be withdrawn.

The upper middle portion of the plate 9 is formed with a slot 29,running vertically from the upper edge of the plate downward to thebefore-described openingin the center there of. The flange 22 of thecasing is provided with a slot 30, running radially in the flange andcapable of registering with the slot 29. The slot is coincident to oneof the notches 23 in the flange 22.

Fig. 2 shows a key-plate consisting in a head 31 and a shank 32, with aninwardlyrunning hook 33 at its lower end. The shank 32 of the key-plateis adapted to projectdownward through the slots 29 and 30 when suchslots are in register with each other. The lower edge of the head 31 ofthe key-plate may now bear upon the notched periphery of the flange 22,whereupon by turning the casing 20 the periphery of the flange 22 willrun against the lower edge of the head 31, and a person holding thekey-plate may tell by the pulsations of the key-plate against his handhow many notches 23 are passing the keyplate from the turning of thecasing 20. In turning the casing 20 to adjust the tumblers the points ofthe combination which is being followed are counted by the num ber ofnotches turning right and left from the slot 29. Vhen there is light,the operator may see the number of notches that are turned, andtherefore operate the look without the key-plate, but when there is nolight (at night, for example) the key-plate may be inserted in the slots29 and 30 and the number of notches turned may be counted by thepulsations of the keyplate against the hand. The inwardly-projectinghook 33 has a beveled lower edge, the purpose of which is to find theslot 30 in the flange 22. The operator can easily find the slot 29 andmay insert the lower extremity of the shank 32 therein, permitting thebeveled lower edge of the hook 33 to bear against the flange 22. Thecasing 20 may now be turned until the hook 33 drops intothe slot 30 ofthe flange 22, whereupon the operator will know thathe has reached thestarting-point for the turning of the combination. He may now proceed toturn the casing right and left, according to the combination, and thusrelease the lock. The pins 26 and 27, being once inserted, need never beremoved; but it may be desirable at some times to remove the pin 25, soas to permit the casing 20 to be taken off the tube 10, for example,when it is preferred to change the combination of the lock. To do this,I form a hole 34 at a known point in the extent of the groove 24. Theouter end of the pin 25 should be filed flush with the outer surface ofthe casing 20. NVhen it is desired to remove the pin 25, the casing 20is turned until the pin is in radial line with the opening 34, afterwhich the pin should be driven into the hole 34:, which will cause thecasing 20 to be disconnected from the, tube 10 and permit the casing tobe removed. The combination-i; 8., the certain relative rela tion of thetumblers, the bolt, and the easing 20may then be changed in the usual IIIIELDDGI.

Having thus described my invention, 1 claim as new and desire to secureby Letters Patent 1. The combination of a base-plate having a slottherein, a tube carried by the base-plate,

" a bolt with a ward, the bolt and ward being .revoluble in the tube,tumblers turning on the tube and controlling the movement of the bolt,and a casing turning on the tube and adjusting the tumblers, the casinghaving a flange with peripheral notches and having a slot run throughthe inner face of the flange, the slot in the flange being capable ofregistering with the slot in the base-plate so as to receive a key, aportion of which may bear against the notched periphery of the flange onthe casing.

2. The combination of a base member having a slot, a bolt, tumblerscontrolling the bolt, and a casing mounted to turn on the base memberand having a flange with a notched periphery, whereby a key may befitted with in the slot of the base member and bear on the notchedperiphery of the flange.

A permutation-lock having an exterior casing revolubly mounted to turnand adjust the position, of the tumblers, the casing having a flangewith a broken periphery capable of being engaged by an object todetermine the number of notches turned by the casing.

4e. The combination of a base member, a tube carried by the base member,a bolt movable within the tube, tumblers turningon the tube, and acasing inclosing the tube and tumblers,the casing having a notchedportion.

5. The combination of a base member, a

.tube carried by thebase member, tumblers turning on the tube, a boltmovable within the tube, and a casing inelosing the tube and tumblersand turning around the same, the casing having a broken exterior surfacecapable of being engaged by an object whereby to determine the number ofdegrees turned by the casing.

6. A permutation-lock having a base-plate with an opening therein, atube with an enlarged inner portion and a reduced outer por= tion, thereduced outer portion having a slot running through the wall between thetwo portions of the tube, a casing turning on the inner portion of thetube, two tumblers turning on the outer portion of the tube, and a boltmovable within the tube and controlled by the tumblers, the casing beingcapable of adjusting the tnmblersby turning on the tube.

7. A perm utation-lock having a base member with an opening, a tubecarried on the base member and surrounding the opening, the tube havingan enlarged inner portion and a reduced outer portion, the outer portionof the tube having a'slot running through the Wall between the inner andouter' portions of the tube, a tumbler turning on the outer portion ofthe tube, a bolt movable within the tube, and having a ward capable ofturning freely Within the inner portion of the tube and moving throughthe slot in the outer portion of the tube, and a casing'inclosing thetube and tumblers and capable of movement to adjust the tumblers wherebyto engage or disengage the ward of the bolt.

8. A permutation-lock having a tube with an enlarged inner portion and acontracted outer portion, the outer portion having a slot runningthrough the outer portion and through the wall between the inner andouter portions of the tube, the tumblers turning 011 the outer portionof the tube and having a notch in their inner Walls, the notch beingcapable of registering with the slot, means for adjusting the tumblers,and a bolt movable within the tube and having a Ward capable of turningwithin the inner portion of the tube and of moving through the slot inthe outer portion of the tube and through the notch in the tumblers.

9. A permutation-lock having a tube with an annular groove in itsexterior face and an opening running through the thickness of the tube,a pin removably held in the casing and running in the groove of thetube, the pin being capable of being driven through the opening in thetube to release the casing,

and a bolt and tumblers coacting with the tube and casing.

10. A permutation-lock having a tube with an enlarged inner portion anda contracted outer portion, the inner portion having an annular groovein its exterior face and the outer portion having a slot running throughit and through the Wall between the inner and outer portions of thetube, a bolt movable Within the tube and having a Ward movable withinthe inner portion of the tube and movable through the slot in the outerportion of the tube, a tumbler turning on the outer portion of the tubeand controlling the bolt by engagement with the Ward thereof, and acasing having a projection running in the groove of the inner portion ofthe tube and being'held on the tube by means of said projection, thecasing being capable of engaging the tumbler to actuate the same. 11. Apermutation-lock having a base member with a groove running along theface thereof, and a rotating member turning on an axis to which saidgroove is radial, the rotatin g member having a portion of its peripheryprovided With notches that successively pass the groove in a circularline so that a key carried in the groove may press against the notchedperiphery of said rotating member.

JAMES J. BYRNE.

WVitnesses:

CLAUDE P. AoKLEY, THOMAS BEMsoN.

